Aroma diffuser



FIG. 1 is a perspective view of an aroma diffuser of the present invention;

FIG. 2 is a front view of the aroma diffuser of FIG. 1;

FIG. 3 is a back view of the aroma diffuser of FIG. 1;

FIG. 4 is a left side view of the aroma diffuser of FIG. 1;

FIG. 5 is a right side view of the aroma diffuser of FIG. 1;

FIG. 6 is a top view of the aroma diffuser of FIG. 1; and,

FIG. 7 is a bottom view of the aroma diffuser of FIG. 1.

The broken lines in the drawings illustrate portions of the aroma diffuser and form no part of the claimed design. 

CLAIM The ornamental design for an aroma diffuser, as shown and described. 